1、Manual of PetroleumMeasurement StandardsChapter 8.4Standard Practice for Sampling and Handling of Fuels for Volatility MeasurementTHIRD EDITION, MARCH 2014Special NotesAPI publications necessarily address problems of a general nature. With respect to particular circumstances, local, state, and feder
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19、.org.iiiContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Referenced Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、. . . . . . . . . . . . . . . . . . . . . . . . . 13 Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Summary of Practice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Significance and Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 General Comments . . . . . . . . . . . . . . . . . . .
22、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Specific Sampling Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Special Precautions and Instructions
23、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Keywords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Summary of Change
24、s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Figures1 Nozzle Extension for Nozzle Sampling with 4 oz Bottle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Slo
25、tted Stand Pipe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Assembly for Bottle Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26、 . . . . . . . 44 Tank Sampling Depths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Assemblies for Tap Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27、. . . . . . . . . . . . . . . 56 Cooling Bath for Reid Equivalent Vapor Pressure Sampling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Probes for Line Sampling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28、. . . . . . . . . . . 58 Spacer for Nozzle Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Extension for Nozzle Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
29、 . . . . . . . . . . . . . . . . . 710 Assembly for Nozzle Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Tables1 Summary of Gasoline Sampling Procedures and Applicability. . . . . . . . . . . . . . . . . . . . . .
30、. . . . . . . . . . . . . 2vDesignation: D5842 14Manual of Petroleum Measurement Standards (MPMS) Chapter 8.4Standard Practice forSampling and Handling of Fuels for Volatility Measurement1This standard is issued under the fixed designation D5842; the number immediately following the designation indi
31、cates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This practice covers procedures and equip
32、ment forobtaining, mixing, and handling representative samples ofvolatile fuels for the purpose of testing for compliance with thestandards set forth for volatility related measurements appli-cable to light fuels. The applicable dry vapor pressure equiva-lent range of this practice is 13 to 105 kPa
33、(2 to 16 psia).1.2 This practice is applicable to the sampling, mixing, andhandling of reformulated fuels including those containingoxygenates.1.3 The values stated in SI units are to be regarded as thestandard except in some cases where drawings may showinch-pound measurements which are customary f
34、or that equip-ment.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to
35、use.2. Referenced Documents2.1 ASTM Standards:2D4057 Practice for Manual Sampling of Petroleum andPetroleum Products (API MPMS Chapter 8.1)D4177 Practice for Automatic Sampling of Petroleum andPetroleum Products (API MPMS Chapter 8.2)D5854 Practice for Mixing and Handling of Liquid Samplesof Petrole
36、um and Petroleum Products (API MPMS Chap-ter 8.3)D7717 Practice for Preparing Volumetric Blends of Dena-tured Fuel Ethanol and Gasoline Blendstocks for Labora-tory Analysis2.2 API Standards:3MPMS Chapter 8.1Practice for Manual Sampling of Pe-troleum and Petroleum Products (ASTM Practice D4057)MPMS C
37、hapter 8.2Practice for Automatic Sampling ofPetroleum and Petroleum Products (ASTM PracticeD4177)MPMS Chapter 8.3Practice for Mixing and Handling ofLiquid Samples of Petroleum and Petroleum Products(ASTM Practice D5854)3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bottom sam
38、ple, na sample obtained from the mate-rial at the bottom of the tank, container, or line at its lowestpoint.3.1.1.1 DiscussionIn practice the term bottom sample hasa variety of meanings. As a result, it is recommended that theexact sampling location (for example, 15 cm 6 in. from thebottom) should b
39、e specified when using this term.3.1.2 dead legs, nsections of pipe that, by design, do notallow for the flow of material through them.3.1.2.1 DiscussionDead legs are not suitable for obtainingrepresentative samples.3.1.3 relief lines, nsections of pipe that lead to a pressure/vacuum relief valve.3.
40、1.3.1 DiscussionRelief lines are not suitable for obtain-ing representative samples.3.1.4 stand pipes, nvertical sections of pipe or tubingextending from the gaging platform to near the bottom of tanksthat are equipped with external or internal floating roofs. Standpipes also may be found on ships a
41、nd barges.3.1.4.1 DiscussionStand pipes which are not slotted orperforated will not yield representative samples. Further infor-mation on proper stand pipe design is given in 6.4.3.1This practice is under the jurisdiction of ASTM Committee D02 on PetroleumProducts, Liquid Fuels, and Lubricants and t
42、he API Committee on PetroleumMeasurement, and is the direct responsibility of Subcommittee D02.02 /COMQ onHydrocarbon Measurement for Custody Transfer (Joint ASTM-API). This practicehas been approved by the sponsoring committees and accepted by the CooperatingSocieties in accordance with established
43、 procedures. This practice was issued as ajoint ASTM-API standard in 1995.Current edition approved Jan. 15, 2014. Published January 2014. Originallyapproved in 1995. Last previous edition approved in 2009 as D584204 (2009).DOI: 10.1520/D5842-14.2For referenced ASTM standards, visit the ASTM website,
44、 www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American Petroleum Institute (API), 1220 L. St., NW,Washington, DC 20005-4070, http:/www.api.org.*A
45、Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.5 Other sample definitions are given in Practice D4057/API MPMS Chapter 8.1.4. Summary of Practice4.1 It is necessary th
46、at the samples be representative of thefuel in question. The basic principle of each sampling proce-dure involves obtaining a sample in such a manner and fromsuch locations in the tank or other container that the samplewill be representative of the fuel. A summary of the samplingprocedures and their
47、 application is presented in Table 1. Eachprocedure is suitable for sampling a material under definitestorage, transportation, or container conditions. The precau-tions required to ensure the representative character of thesamples are numerous and depend upon the tank, carrier,container, or line fro
48、m which the sample is being obtained, thetype and cleanliness of the sample container, and the samplingprocedure that is to be used.5. Significance and Use5.1 The dry vapor pressure equivalent (DVPE) of volatilemotor fuels is regulated by federal and state air pollutioncontrol agencies. In order to
49、meet the letter of theseregulations, it is necessary to sample, handle, and test theseproducts in the precise manner as prescribed in this practice.6. General Comments6.1 Sample Containers:6.1.1 Sample containers are clear or brown glass bottles,fluorinated high-density polyethylene bottles, or metal cans.The clear glass bottle is advantageous because it is easilyexamined visually for cleanliness, and also makes visualinspection of the sample for free water or solid impuritiespossible. The brown glass bottle affords some protection fromlight. The only cans acceptable
